Plier-wrench.



A. S. E. METCALF.

PLIER WRENCH.

APPLICATION FILED JUNE I3. 1916.

1 ,207,b64. Patented Dec. 5, 1916.

FTG

ARTHUR S. E. METCALF, 0F DRISCOLL, NORTH DAKOTA. a

PLIER-WRENCH.

Specification of Letters Patent.

Patented Dec. 5, 1916.

Application filed June 13, 1916. Serial No. 103,514.

To all whom it may concern Be it known that I, ARTHUR S. E. Mn'r- CALF, a citizen of the United States, residing at Driscoll, in the county of Burleigh, and State of North Dakota, have invented certain new and useful Improvements in Flier-Wrenches, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to wrenches, and particularly to that class of wrenches wherein there is a movable jaw shiftable toward a fixed jaw by means of a handle having toothed engagement with the movable jaw.

One object of my invention is to provide a wrench of this character in which the movable jaw has a relatively great range of movement toward or away from the fixed jaw.

A further object of the invention is to provide means whereby the actuating handle which operates the movable jaw may be shifted relatively to the frame supporting the fixed jaw, so as to shift the pivotal point of said handle nearer or farther from the plane of the fixed jaw so as to thereby provide for initially adjusting the wrench for use with articles of a predetermined size.

A further object is to provide a wrench of this character with a plurality of what may be termed pivot seats for the shiftable handle and provide means whereby a rotation of the handle to a predetermined angle will disengage the pivotal tooth of the handle from a pivot-seat and permit the handle and movable jaw to be slid toward or from the fixed jaw to thereby initially adjust the movable jaw in the proper relation to the fixed aw.

A further object is to provide a wrench whose action is extremely powerful, the handles being so arranged that the operator may readily apply great pressure on the handles.

One practical form of construction will be described and illustrated in the accompanying drawings, in which- Figure 1 is a fragmentary side elevation; Fig. 2 is a front elevation; Fig. 3 is an elevation of the face of the fixed jaw; Fig. 4 is a perspective view of the upper end of the movable handle; Fig. 5 is a perspective view of the movable jaw showing the guideway, rack and the cutting edge.

The wrench comprises a handle 6 which is secured to or formed integral with a box portion 7, comprising opposite side plates 11 and 12. Adjacent to one end of the box 7 formed by the two plates 11 and 12 there is provided an upwardly projecting jaw 8, the inner face of which is serrated, as at 9, and formed with a cutting edge 10 near its base. The upper edges of the side plates 11 and 12 are disposed at right angles to the face of the aw S, and the sides 11 and 12 are spaced a sufficient distance apart so that the shank A of the movable jaw 13 may slide freely between these side plates.

Disposed below the upper edge of one side plate 11 is a guide rib let which is parallel to the top edge of the plate. The handle 6 is provided with a portion 15 acting as a spacing member for the sides 11 and 12. Disposed below the guide rib li is a rack 16 having the teeth 31 which rack lies in a plane parallel to the guide rib 1a and preferably upon the same side to which is attached the guide element. The lower end of the handle 6 terminates in an angular end 17 which may act as a screw driver.

To cooperate with the jaw 8 is a complementary jaw 13 which is provided with a face 18 and near its base a cutting edge 19. Extending down from the body of the jaw is a shank A which extends at right angles to the face 18 and is preferably an integral part of the jaw 13. A guideway or channel 20 extends across the face of the shank to receive the rib let and the lower end of the shank is formed with a rack having teeth 21. This guideway or channel 20 holds the shank A so that the aw 13 is at all times parallel to the jaw 8.

In order that the movable jaw 13 may have its position quickly and readily changed, a handle 22 has its upper end formed with a series of teeth 23. These teeth 23 engage and cooperate with the teeth 21 formed on the movable jaw 13. The shape of these teeth is such that they have a more or less sliding or rolling motion relative to each other and at the same time have suflicient depth that the j aw 13 may be moved positively with relation to the jaw 8. Disposed on the handle 22 and adjacent the end upon which the teeth 23 are formed, is a rocker 241: which has teeth 26 formed only upon a certain portion of its periphery which define seats with which the teeth of the rack 16 engage. These teeth 26 are preferably formed adjacent the side 25 of the handle 22 and from the last tooth 26 to the opposite end of the handle formed by the last tooth 23 the periphery curves upward to provide a rocking face 26*. The handle 22 is provided with a channeled way 27 which is defined on one side by a shoulder portion 28. This shoulder portion is provided with angular faces so that the apex formed by the uncture of the two sides may be used as a bearing portion to contact with the under surface 29 of the side 11 of the box 7 and limit the movement of the handle 22 in one direction, the stop pin 32 being provided which projects from the wall 12.

It will be noted particularly that no rivets, catches or pivot pins are employed to form any part of the construction of this wrench.

In the practical use of this wrench, the jaws are initially set by rotating the handle to the right in Fig. 1, so that the rocker face 26 ,will engage with the upper faces of the teeth 31 and raise the teeth 26 out of engagement with these teeth 31. Under these circumstances the handle and the jaw may be slid longitudinally so as to carry the movable jaw 13 toward or from the fixed jaw 8. After this initial adjustment, drawing the handles toward each other will cause the jaw 13 to move toward the jaw 8 and bind upon the work. It will be seen that the wrench as above described is very simple, that it practically consists of only three parts, namely, the handle 6, the body 7, and the jaw 8 which are all preferably integral, the movable jaw 13 with its shank, and the handle 22, and that no rivets or pivot pins are used.

Having thus described this invention, what is claimed is 1. A wrench including a handle, a side plate rigidly connected to the handle and a jaw rigidly connected to the side plate, a jaw mounted on the side plate to confront the fixed jaw, and a handle having rocking engagement with the. lower end of the last named jaw, said handle being bodily shiftable with relation to the side plate and engageable for pivotal movement with the side plate at a plurality of points. 2. A wrench including a handle, a side plate rigidly connected to the handle, a jaw rigidly connected to the side plate, a movable jaw slidingly mounted on the side plate and having teeth at its inner end, a movable handle having teeth at its inner end and engaging the teeth on the movable jaw, and a rack on the side plate, the last named handle having a rocker thereon formed with a seat for the rack teeth, the handle being movable to disengage the seat from said rack teeth.

3. A wrench including a handle, a side plate rigidly connected to the handle, and a jaw rigidly connected to the side plate, a movable jaw slidingly mounted on the side plate and having teeth at its inner end, a movable handle having teeth at its inner end engaging the teeth on the movable jaw, and. a rack attached to the side plate and having a series of teeth extending parallel to the upper edge of the side plate, the movable handle at its end adjacent to the movable jaw being provided with a rocker having a curved face adapted to rock upon the upper edge of the rack teeth, and said curved face terminating at its lower end in teeth adapted to engage with the rack teeth.

4-. A wrench including a handle, oppositely disposed side plates rigidly connected to the handle, and a jaw rigidly connected to the side plates, a movable jaw slidingly mounted on the upper edges of the side plates and movable toward or from the fixed aw, said movable jaw having a shank extending into the space between the side plates, the lower edge of the shank being toothed, a rack formed upon one of said side plates and extending parallel to the upper edge thereof, the spaces between the teeth of said rack constituting pivot seats, and a movable handle having one end extending into the space between the side plates, the upper end of the movable handlehaving teeth engaging the teeth on the lower end of the movable jaw, said movable handle adjacent to its lower end and on one side being formed with a rocker having a curved face confrontin the toothed face of the rack, and one end of the curved face being formed with teeth adapted to engage with the teeth of the rack and form rocking pivots for said handle.

5. A wrench including a handle, a frame to which the handle is connected, a rigid jaw mounted on the frame, a jaw mounted upon the frame for movement toward and from the rigid jaw, and a movable handle having its upper end disposed within said frame and operatively engaging the movable jaw, said handle and movable jaw being unitarily shiftable toward or from the fixed jaw, the handle being independently shiftable with relation to the frame and engage able for pivotal movement at a plurality of points with said frame.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses,

ARTHUR S. E. METOALF.

Witnesses AL A. CHAPIN, HENRY WIEMER.

Copies of this patent may be obtained ,for five cents each, -by addressing the Commissioner of l atents,

Wa hington, D. of 

